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The Chinese almanac (老黄历, lǎo huánglì) is a traditional calendar guide used for over 2,000 years to determine auspicious and inauspicious days for important life events. It combines the 12 Day Officers cycle, solar terms, lunar calendar analysis, and GanZhi interactions to produce daily guidance. Traditionally, Chinese families consult the almanac before weddings, moving house, business openings, and major medical procedures.

Different almanacs apply different rule sets and levels of personalization. Some systems use only Day Officers; others layer in zodiac clashes, house-facing direction, the stem-branch of the day, and additional lunar month rules. There is no single universally agreed-upon authority — this is why two almanacs may produce different recommendations for the same event. Our tool shows you exactly which factors we apply, so you can understand the basis of each recommendation rather than treating it as a black box.

No — traditional date selection is partly personal. A date that is generally auspicious (e.g., governed by the "Succeed" officer) may still clash with your specific zodiac branch (冲, chōng), making it less ideal for you personally. This is why entering your zodiac sign refines the results beyond a generic "good day" list. It also explains why different people in the same household might receive different recommendations.

The 12 Day Officers cycle through every day, each governing a specific type of energy. The most auspicious are 成 (Chéng · Succeed) and 开 (Kāi · Open) — excellent for almost any major event. The most inauspicious are 破 (Pò · Break) and 危 (Wēi · Danger) — best avoided for important occasions. Interestingly, 破 (Break) is actually considered acceptable for demolition — showing that no officer is universally bad, context always matters.

Each day has an Earthly Branch (地支) associated with it. In traditional Chinese astrology, if a day's branch directly opposes your zodiac animal's branch — a relationship called 冲 (chōng, "clash") — it may be considered less favorable for major events involving you. We check this automatically when you provide your zodiac sign and flag any clashing dates so you can factor it into your choice.

No. Auspicious date selection is a cultural and traditional practice — not a scientific prediction system. We implement the core traditional algorithm faithfully: the 12 Day Officers cycle, lunar day patterns, and zodiac clash detection — the same methodology found in traditional 老黄历 calendars. The "score" shown is our simplified numerical interpretation of the traditional system, not a real ancient rating. Use these recommendations as cultural context, not as a guarantee of outcomes.

Chinese auspicious date selection works best as one factor among many — alongside practical considerations like venue availability, weather, and family schedules. The tradition holds that a good day enhances the energy of your event, but your sincere intentions and careful preparation matter most. If your top-rated date is impractical, choose a "Good" alternative without guilt.